The wind chill Tuesday is expected to reach 20 to 30 degrees below zero, and perhaps 10 degrees colder than that in higher elevations, said WJAC-TV meteorologist Josh Fosbrink.
It looks like the coldest air weve had in 20 years, Fosbrink
In 1994, State College
saw a historic 18 degrees below zero, according to NWS data compiled since 1900.
In only a few years since 1994 did the area see temperatures below zero, and none under negative 5.
Basically, were seeing a polar vortex that has been dropping in across Canada, and its pulling down with the arctic chill from way up north, Fosbrink
It looks like it will be short-lived, only about 48 hours.
The cold air comes from a system thats put the entire midsection of the country into a deep-freeze, with temperatures plummeting into the negative 30s in Fargo, N.D., and windchill warnings reaching from Montana to Alabama.
This is pretty fast-moving, Fosbrink